AU612705B2 - Device for cleaning a surface in order to remove sticky substances - Google Patents
Device for cleaning a surface in order to remove sticky substances Download PDFInfo
- Publication number
- AU612705B2 AU612705B2 AU23271/88A AU2327188A AU612705B2 AU 612705 B2 AU612705 B2 AU 612705B2 AU 23271/88 A AU23271/88 A AU 23271/88A AU 2327188 A AU2327188 A AU 2327188A AU 612705 B2 AU612705 B2 AU 612705B2
- Authority
- AU
- Australia
- Prior art keywords
- layer
- electromagnet coil
- coil
- current
- turns
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Description
OPI DATE 24/11/89 APPLN. I D 23271 88 PCT AOJP DATE 21/12/&9 PCT NUMBER PCT/SU88/00096 ME)+(AYHAP( 'mET~JjPy4 C A0O7OBOPOM 0 (PCT)HTH A (51) Meacyuapo~uaR 1accmH4va.iHH Hao6peTeuf 4: BO8B 7/02, 3/10 Al 1(21) Homep mea yHapo~jiof ny6ainaiwn: WO 89/102 13 (22) ,RlaTa mexcYuaPo0Ao~f uy6jiH aIxHHH2 Hoq6pH 1989 (02.11.89) (21) Holiep meafc~yHapoAHoli 3aHBKH: P CT'A'SU 8S/ 00 0 96 (22) JAaTa xeacyaPoAHoli uio~aqH: 22 airpea 1988 (22.04.88) (71) 3aSIBHTejub (8/La ecex y~ajaiinax zocyaapcma, mpome 'DMHAJI BCECO1O3HOPO 3JIEKTPOTEX- HWI1ECKoro HHCTHTYTA IiMEHH BA.H.JIE- HHHA [SU/SUI; Hcrpa-2 143500, MociROncKaq o6Ai., (SU) [FILIAL VSESOJUZNOGO ELEKTROTEKH- NICHESKOGO INSTITU'2!A IMENI V.ILENINA, Istra-2 (72) Hao6peraTeju; Hf Haio6pe~a'reju 3asi~dejix (mioAb~co a8~ US): OT- HOPAJI Anexcaip rlau.'IosH19 [SU/SU]; QLleAOBCK 143505, MoCcxafa, o6ni., yni. KpacimRi Oicrs6pb, Ai. 3, K~B. 34 (SU) [ODNORAL, Alexandr Pavlovich, Dedovsk TOJIMAqEB HHnconai CepreesH'n [SU/ SUI; Hc~a 143500, MocKoBCKa-9 o6ji., yai. ileinna, A.
1, icB. 211 (SU) [TOLMACHEV, Nikolai Sergeevich, Istra (SU)l. TIOTLKHR Bjiaiim~p Aneccaipoiing- [SU/ SUJ; 14C'pa 143500, MOCKoa3cicasi o6ni., Rie- Hmia, A, 13, KBn. 31 (SU) [TJTJTKIN, Vladimir Alexandrovich, Istra (SU)l.
(74) AreHT: TOPPOBO-flPOMbIIIIJIEHHAR rIAJIATA COOP; MocKaa 103735, yni. Kyii6bimeaa, A. 5/2 (SU) [THE USSR CHAMBER OF COMMERCE AND INDUSTRY, Moscow (SUAl.
(81) YicaanE .le rocy~apcT~a: AU, DE, DK, Fl, GB, HU, NL, US.
Ony6jnncoaa C om'iemom 0 meaocyhapoahom noucye.
(54) Title: DEVICE FOR CLEANING A SURFACE IN ORDER TO REMOVE STICKY SUBSTANCES (54) HaaHarne itao6peTeliila YCTPOflCTBO AJ1IR OtIHCTKH HIOBEPXHOCTH OT HAJI'HnAH451 BE14]ECTB (57) Abstract A device for cleaning a surface of sticky substances comprises a multilayer electromagnetic coil a pulsed-current source (3) and ax paramagnetic plate placed between the surface to be cleaniiel and the electromagnetic coil The number n of the layers in the coil varies from two to five, each layer (8) consisting of a spiral current-conducting bus of a rectangular cross-section. The laycrs are located in parallel planes and are connected correspondingly. For two-, three-, four- and five-layer electromagnetic coils there are predetermined relationships between the number W of loops in each layer and the optimal number W 1 of the loops and between the height h of the cur:- nt-conducting bus and an equivalent depth A of penetration of the magnetic field into the metal of the electromagnetic coil (57) Pe4)epaT: YoTpo4CTMO ;11H OUO4TK14 IIOBOPXHiOCTH' OT iiazraiz Bew~eoB Coo 1 IepXX1T MHor00A0jiofl11o meTpom.aI'THY1IO KaTywKcy ZC0TOR- Hi MnUIThCHorO ToKa, nap TmflHTE~'io rLJacT14Hy paciOJIO2xeH3II mezxW a~uuaemok iioBepXHOCTIO x4 mJeKTPOMaI'- HIZTH02i KaTyWIIOI4 Koa1eoTBO n czoeB B KaTyue hdXOXXTCR B npezeiaxc OT AB]YX AIO rUqTZi, Kayjuf oi (8) BbiIOJIHeH B B14 1 Ie Ofizpaji4 M43 TOKOHPOBo~auleg4 umI4I nimloyroZBoro ceqeimzs. Cxo14 paonoxnomemu B iiapameuiH~iX rlIOO- KOOTHIX x4 ByzmeTIHB ooriiao Ho. HlpWqeM =nt ABYXJI0HOVI, Trpex- CJI02HOR, 4eTU~peXCJIOAHOik 14 IIATX14OORHO1 aiiKTOMaHTHX xa- Tyuiex 14me1TcR 3aga~HHue 3aBI4cxMOC T4zci W1CI B14TIOB B xaz~om c.jioe OT OIIT14MaJihHOI t O x4cia B14TKOB x4 3aBxc0i4vi00T1 BLIOOTU h TO1COflPOBoWf~a1eRk ufizH OT womaIeHTH~ik FJzyO4Hu L TIpoHzoBe1fl4 marHUTHoro noai.m B meTa7IX sjeHTPOMar1ITHOfl RaTyuacz IICKJIIOMHTEJI]thO XILA 1IWAEIR HH4OPMAUHH Koxubi, MCnojmb3yembie xuig o6o3HatleHl4A cTpaH-tuneHOB PCT Ha TH-ryjibHbIX jH4CTax 6pounop, B3 KOTOpbiX riy6nHKylOTC~l me)IYHapOZHbie 3aSlHKH 13 COOTBeTCTBI41i c PCT: Bap6aLnoc Ben brii Bonrapila BeHH H Bpa3HnHSi UjeHTpanbHoacpHxaHc~Sii Pecny6nvsixa Kosiro WBeruapt4iR KamePYH c0eaepaTHB~asi Pecny6rnHca repmaHHH AHl1iIH (DpaHuHmi ra6oH BenHlKo66PTaHmsi BeHrpHR Kopescx H4apOnHo-LaemoKpaTs1'secKasi Pecny6ntixa KopeACKasi Pecny6jitHxa .IHXTeHWTe4H WLPH ilaHKa Jh1OKcem6ypr MaiaracKap M ani MaBPHiTaHtis MaJnami HiiaepnaHabi Hop ne r"H PYSIbMI-m Cyaa LU ae u Hs Ceie ran COBeTCKliR1 C01o3 4I an Toro CoeCaiHeHHbie IfTamli AmepHIx I i -2- APPARATUS FOR CLEAMING A SURFACE FROM SUBSTANCES ADHERED THERETO Field of the Invention This invention relates generally to devices for cleaning and preventing contamination of surfaces through vibration, and more specifically to an apparatus for cleaning a surface from substances adhering thereto.
Prior Art There is known an apparatus for cleaning a surface 10 from impurities SU, A, 875, 198), comprising a flat electromagnet coil, a paramagnetic plate, a rod and a pusher for transmitting pulses from the electromagnet coil to the surface being cleaned, and an additional paramagnnetic plate disposed at the opposite face of the electromagnet coil. The first paramagnetic plate is connected to the surface being cleaned through the pusher, whereas the additional paramagnetic plate is connected to the surface being cleaned through the rod.
However, this apparatus fails to produce a suffici- 20 ently strong pulse force, because the electromagnet coil has the form of a single-layer spiral with a random number of turns. In addition, with the flat arrangement of the electromagnet coil the depth of penetration of the magnetic field into the metal of the electromagnet coil S 25 can substantially exceed the height of the current-conducting bar of the spiral, which affects electromagnetic coupling of the coil with the paramagnetic plates. This apparatus therefore provides an insufficiently strong impulse of force applied to the surface being cleaned to result in low surface cleaning efficiency.
There is also known an apparatus for cleaning a surface from substances adhering thereto SU, 918, 220) comprising an electromagnet coil, a source of pulse current connected to the electromagnet coil, a paramagnetic i i 3 plate fabricated from a material of high electrical conductivity positioned between an end face of the electromagnet coil and the surface being cleaned, a spring-biased rod, and a platen. The apparatus is provided with an additional paramagnetic plate fabricated from a material of high electrical conductivity, arranged at the opposite side of the electromagnet coil, resiliently linked therewith and with the main paramagnetic plate through the spring-biased rod, and a shell connected to the additional paramagnetic plate by way of a transmission means and disposed coaxially with -the electromagnet coil. The paramagnetic plate is secured 15 at the bottom part of the shell having the transmission means mounted at its side surface. The shell is connected to the platen through resilient elements, and is arranged •so as to move between tne electromagnet coil and shell.
•This apparatus has low efficiency of converting the energy of the source of pulse current into mechanical energy for cleaning the surface due to that the electromagnet coil is :e single-layer and has a random number of coil turns, whereby the impulse of force applied to the surface being cleaned lacks the required strength. This in turn makes cleaning of surfaces from substances adhered thereto less efficient. In view of the aforedescribed, the prior art apparatus has a rather low surface cleaning efficiency.
182s/EM 4 SUMMARY OF THE INVENTION According to the present invention there is provided an apparatus for cleaning a surface from substances adhered thereto comprising an electromagnet coil, a source of pulse current connected to the electromagnet coil, a paramagnetic plate from a highly electroconductive material arranged between the surface being cleaned and end face of the electromagnet coil, wherein the electromagnet coil is multilayer, the number n of layers ranging from two to five, each layer having the form of a helical current conducting bar of rectangular :t .Ie 15 cross section, the layers of the electromagnet coil resting in parallel planes and connected in an aiding 4 connection, the number W of coil turns in each layer for a two-layer electromagnet coil ranging from 0.4W 1 to 1.1W 1 whereas the height h of the current-conducting S 20 bar ranges from A to 1.5 A, for a three-layer electromagnet coil to the number W of coils in each layer ranging from 0.35W 1 to 0.9W 1 whereas the height h of the current-conducting bar ranges within from 0.8 A to A, for a four-layer electromagnet coil the number W of •6 25 turns in each layer ranging from 0.32W 1 to 0.75W 1 whereas the height h of the current-conducting bar ranges from 0.75 A to 0.9 A, and for a five-layer electromagnet coil the number W of turns in each layer ranging from 0.3W1 to 0.65W 1 whereas the height h of 0 30 the current-conducting bar is within a range from 0.7 A to 0.8 A, where W1 is the optimum number of turns, and A is the equivalent depth of penetration of the magnetic field into the metal of the electromagnet coil.
.82s/EM 5 The aims of the invention are attained by that in an apparatus for cleaning a surface from substances adhered thereto comprising an electromagnet coil, a source of pulse current connected to the electromagnet coil, a paramagnetic plate fabricated from a highly electroconductive material arranged between the surface being cleaned and end face of the electromagnet coil, according to the invention, the electromagnet coil is multilayer, the number n of layers ranging from two to five, each layer having the form of a H 10 helical current conducting bar of rectangular cross sec- S* tion, the layers of the electromagnet coil resting in parallel planes and connected in an aiding connection, the number W of coil turns in each layer for a two-layer electromagnet coil ranging from 0.4W 1 to 1.1W 1 whereas the height h of the current-conducting bar ranges S" from A to 1.5 A for a three-layer electromagnet coil the number W of coil turns in each layer ranging from 0.35W 1 to 0.91, whereas the height h of the current-conducting bar ranges within from 0.8Z 20 to A for a four-layer electromagnet coil the number W of coil turns in eavh layer ranging from 0.32W 1 to 0.75W 1 whereas the height h of the current-conducting bar ranges from 0,75 A to 0.9 A and for a fivelayer electromagnet coil the number W of coil turns in 25 each layer ranging from 0.3W 1 whereas the height h of S. the current-conducting bar is within a range from 0.74 to 0.8 A where W 1 is the optimum number of coil turns, and A is the equivalent depth of penetration of the magnetic field into the metal of the electromagnet coil.
The proposed apparatus for cleaning a surface from substances adhered thereto makes it possible to increase the impulse of mechanical forces applied to the surface being cleaned, reduce the amount of electrie power consumed for the cleaning process, automate the cleaning process, dispense with manual operations, and increase the service life of the equipment cleaned by the appara- -i l r;;,rr ;r 7 r
I'
6 tus. The invention also ensures a higher efficiency of cleaning a surface from substances adhered thereto.
Brief Description of the Drawings The invention will now be described in greater detail with reference to a preferred embodiment thereof taken in conjunction with the accompanying drawings, in which Fig. 1 is a longitudinal sectional view of an apparatus for cleaning surfaces from substances adhered thereto; Fig. 2 shows a three-layer electromagnet coil connected to a source of pulse current; Fig. 3 shows a graph of dependence of and impulse S of force applied to the surface being cleaned on the number W of coil turns in the layer for a three-layer electromagnet coil; and Fig. 4 shows a graph of dependence of an impulse S of force applied to the surface being cleaned on the height h of a current-conducting bar in an apparatus according to the invention.
20 Best Mode of Carrying out the Invention An apparatus for cleaning the workpiece surface from substances adhered thereto comprises an electromagnet coil 1 (Fig. 1) wired by current leads 2 to a source 3 of pulse current, and a paramagnetic plate 4 fabricated from a material of high electrical conductivity. The paramagnetic plate 4 is disposed between the surface 5 being cleaned and end face of the electromagnet coil 1. The electromagnet coil 1 is encapsulated in an epoxy compound 6 for extending the service life thereof.
The electromagnet coil 1 is fabricated from a copper current-conducting bar 7 of rectangular cross section having a heigh h and a width b. The electromagnet coil 1 is a multilayer coil with a number n of layers 8 °1\ r_ I_ equal to at least two, but not more than five. In this instance the number n of layers 8 is three. In each layer 8 the number W of coil turns 9 is nine.
Fig. 1 shows dimensions of the electromagnet coil 1:
D
1
D
2 inside and outside diameters; b width of the current conducting bar 7 of the layer 8; b1 thickness of the insulation of the current conducting bar 7; h height of the current conducting bar 7 of the layer 8; and h 1 height of the electromagnet coil 1.
S" The source 3 of pulse current can be of any known suitable design Karpenko "Bystrodeistvujuschie 15 elektrodinamicheskie otkljuchajuschie ustroistva", published by the Energia Publishers, in Russian, 1973, Lenin- I} grad, pp. 31 to 35). Normally, for a two-layer electromagnet coil 1 the number W of coil turns 9 ranges from 0.4W to 1.1W 1 whereas the height h of the current 20 conducting bar 7 is within a range from A to 1,5 where W i the optimum number of coil turns 9 in the layer 8 of the coil 1; and A the equivalent depth of magnetic field penetration into the metal of the electromagnet coil 1. For a three-layer electromagnet coil 1 the number W of coil turns 9 is within a range from 0.35
W
1 to 0.9W 1 whereas the height h of the current conducting bar 7 ranges from 0.8 A to z For a fourlayer electromagnet coil 1 the number W of coil turns 9 ranges from 0.32W 1 to 0.75W 1 the height h of the current conducting bar 7 ranging from 0.75 A to 0.9 A For a five-layer electromagnet coil 1 the number W of coil turns 9 in each layer 8 is from 0.3W 1 to 0.65W 1 whereas the height h of the current conducting bar 7 ranges from 0.7 A to 0.8 Fig. 2 shows a three-layer electromagnet coil 1 connected to the source 3 of pulse current. The layers 8 of -<ry electromagnet coil 1 are arranged in parallel planes, and connected in an aiding, connection, whereas outlets of the current conducting bar 7 of the end layers 8 are connected by way of current leads 2 to the source 3 of pulse current.
In Fig. 3 curve A represents dependence of the impulse S of force on the number W of coil turns 9 in the layer 8 for a three-layer electromagnet coil 1 with D 40 mm and D 2 10 mm. The curve A shows the range of variations in the number W of coil turns 9 in the layer 8. In this case 0.35W 1 L W 0.9W 1 where D1 D 2 WI 12b
I
Therefore, the number W of coil turns 9 will be within 7 1 W 19. Within this range of variations in the number W of coil turns 9 in the layer 8 the impulse S of force arising between the coil 1 and paramagnetic plate 4 assumes the maximum magnitude from 0.56NAs to 0.72N1s. The magnitude of the impulse S of force for a three-layer electromagnet coil 1 having the number W of coil turns 9 in the layer 8 more than 0.9W 1 or less 20 than 0.35W I becomes commensurable with the magnitude of the impulse S of force for a single-layer electromagnet coil 1 of the same size. The height h of the current conducting bar 7 of the electromagnet coil 1 is selected I 2 proceeding from the graph of dependence represented in Fig. 4. The curve B shows a dependence of the impulse S of force on the height h of the current conducting bar 7, this curve B showing also the range of variations in the height h. For a specific case, viz., at n 3,D1= D 10 mm, W 9, the height h of the current conducting bar 7 must be at least not less than or equal to 0.75 A and not more than or equal to 0.9 A or 1,8 mm Sh 2.1 6 mm, which corresponds to the impulse S of force ranging from 0.66N-s to 0.69N-s. The equivalent depth 4 of penetration of the magnetic field to the me- I tal of electromagnet coil 1 is determined by the relation- 4 ship: K c (L M/T~ 2 where I $qo c -capacity of' the source 3 of pulse current; D L inductance of the electromagnet coil 1; L inductance of the paramagnetic plate 4; M mutual inductance of the system "electromagnet coil 1 -paramagnetic plate 4 11; ~-conductivity of the material of the electromagri net coil 1,and cosat I *When the height h of the current conducting bar 7 is more than 0,9 or less than 0.75 A ,the impulse S of S.force of a three-layer electromagnet coil 1 becomes commensurable with the impulse S of force of a single-layer electromagnet coil 1 of the same size.
Soo*J The apparatus for cleaning the surface 5 (Fig. 1) from substances adhered thereto operates in the follomoo* wing manner. As a current pulse is applied successively to each layer 8 of the electromagnet coil 1 having the number IN of coil turns 9 equal in this specific instance to nine and the height h of the current conducting bar 7 equal to 2 mm by way of the current lead 2 from the source 3 of pulse current, a pulsed magnetic field is established about the three-layer electromagnet coil 1, and eddy currents are induced in the paramagnetic plate 4.
Interaction of the pulsed magnetic field with the eddy currents generates an impulse S of force acting on the paramagnetic plate 4 and transmitted to the surface being cleaned. This gives rise to elastic vibrations in the surface 5 being cleaned, whereby the surface 5 is cleaned of the substance adhered thereto. A 'higher cleaning efficiency is attained with an increase in the impulse S of force acting on the surface 5 due to the growing forces imparted to the substance adhered to the surface. The magnitude of the impulse S of force depends on the parameters of the electromagnet coil 1 and its structural arrangement.
coil 1 in the form of a helical current conducfting bar Ar7gmn fec aer8o h lcrmge of rectangular cross section ensures flat end surface of the electromagnet coil 1 with a minimum clearance between the electromagnet coil 1 and paramagnetic plate 4, and **see:increases the space factor K of the winding of the electromagnet coil 1. The space factor K is determined from I the expression: I ~'CK nWh. 3,where (D h 1 n number of layers 8; W number of coil turns 9 in the layer 8; *0 h, b height and width of the current conducting bar 7, respectively; D1 D inside and outside diameters of the electromagnet coil 1; and h1- height of the electromagnet coil 1.
An increase in the space factor K of the winding of the electromagnet coil 1 in turn makes it possible to reduce magnetic leakage and increase the magnetic field strength at, the end face of the electromagnet coil 1.
Since the magnetic pressure exerted on the paramagnetic plate 4 equals in magnitude to the space density of the energy of the magnetic field, the impulse S of force tends to grow resulting in more efficient cleaning of the surface.
Thanks to the aiding connection of the layers 8 of the coil (Fig. 2) the total magnetic flux and intensity of magnetic field at the end face of the electromagnet coil 1 are increased, whereas the arrangement of the layera 8 in parallel planes ensures uniform magnetic pres- 11 sure exerted on the paramagnetic plate 4 in the axial direction to result in a more efficient conversion of the energy of the source 3 of pulse current and higher efficiency of surface cleaning. The multilayer arrangement of the electromagnet coil 1 with the number n of layers 8 ranging from two to five provides the most efficient conversion of the energy of the source 3 of pulse current into mechanical energy for cleaning the surface (Fig. 1) thanks to a more pronounced impulse S of force S 10 applied to the surface 5 being cleaned. In this case an impulse S of force of a magnitude 20 to 35% higher than S that produced by a single-layer electromagnet coil 1 is imparted to the surface 5 being cleaned. This has been attained by increasing the inductance and improving the 15 quality of the multi-layer electromagnet coil 1 as com- S" pared with a single-layer electromagnet coil 1. With an increase in the number n of layers 8 to over five the magnitude of the force pulse S is reduced due to weakened electromagnetic coupling of the most remote layers 8 of S 20 the electromagnet coil 1 with the paramagnetic plate 4 to become commensurable with the magnitude of the impulse S of force generated by the single-layer electromagnet coil 1.
The preferred number W of coil turns 9 in each lay- 25 er 8 of the electromagnet coil 1 is the following: for a two-layer electromagnet coil 1 the number of coil turns is more than or equal to 0.4W 1 and less than or equal H to 1.W 1 for a three-layer electromagnet coil 1 it is more than or equal to 0.35W 1 and less than or equal to 0.9WI; for a four-layer electromagnet coil 1 it is more than or equal to 0.32W 1 and less than or equal to 0.75W 1 for a five-layer electromagnet coil 1 it is more than or equal to 0.3W 1 and less than or equal to 0.65W 1 where W1 is the optimum number of coil turns 9 in the layer 8 obtained in the case of absence of spurious inductance and parasitic resistance in the source 3 of pulse current fJ. and current lead 2, and without taking into account the effect resistance of the paramagnetic plate 4.
If the number W of turns 9 in the layer 8 for a twolayer electromagnet coil 1 is less than 0.4W 1 for a three-layer electromagnet coil 1 less than 0.35IN 1 1 for a four-layer electromagnet coil 1 less than 0.32 1 and for afive-layer electromagnet coil 1 is less than 0.3W 1 the impulse S of force acting on the paramagnetic plate 4 is reduced. This occurs due to a reduction in the magnitude of the inductance L 1 of the electromagnet coil 1 and mutual inductance M between the electromagnet coil 1 and paramagnetic plate 4. An increase in the number W of coil turns 9 in the layer 8 for a two-layer ele-tromagnet 15 coil 1 to over 1.1W 1 for a three-layer electromagnet 1 to over 0.1 for-layer electromagnet coil 1 to over 0.75W 1 and for a five-layer electromagnet coil 1 to *over 0.65W 1 results in a growing inductance Lof the electromagnet coil 1 and mutual inductance M. However, this produces a detrimental effect associated with losses of energy at the active resistance of the electromagnet coil 1, whereby the impulse S of force is reduced accom- *:e..:panied by a rerluction in the efficiency of operation of the proposed apparatus, and consequently less efficient surface cleaning.
25 The height h of the current conducting bar 7 is selected from within the following range: for a two-layer electromagnet coil 1 it is greater than or equal toA :and smaller than or equal to 1.5 A for a three-layer .electromagnet coil 1 it is greater than or equal to 0.8 Aand less than or equal to A for a four-layer electromagnet coil 1 it is greater than or equal to 0.75 A and smaller than or equal to 0.9 4 for a five-layer electromagnet coil 1 it is gnreater than or equal to 0.7 Aand smaller than or equal to 0.8 A ,where A is the equivalent depth of penetration of the magnetic field into the metal of the electromagnet coil 1. At the height *K~L4\h of the current conducting bar 7 for a two-layer electa 13
PI
0 *0 0 romagnet coil 1 of less than A for a three-layer electromagnet coil less than 0.8 A for a four-layer electromagnet coil 1 less than 0.75 A and for a fivelayer electromagnet coil 1 less than 0.7 A the resistance of the electromagnet coil 1 is increased accompanied by a reduction in quality. This in turn leads to more substantial losses of energy at the resistance and impaired impulse S of force curve B in Fig. An increase in the height h of the current conducting bar 7 (Fig. 1) for a two layer electromagnet coil to more than A for a three-layer electromagnet coil to more than A for a four-layer electromagnet coil 1 to more than 0.9 A for a five-layer electromagnet coil 1 to more than 0.7 a results in weakening of electromagnetic 15 coupling between the layers 8 (Fig. 1 of the electromagnet coil 1 and paramagnetic plate 4 curve B in Fig. This occurs due to an increasing gap between the second, third, fourth, fifth layer 8 (Fig. 1) and paramagnetic plate 4 resulting in a reduction in the impulse S of force curve B in Fig. 4).
In view of the aforedescribed, the proposed apparatus for cleaning a surface from substances adhered thereto makes it possible, by virtue of enhancing the impulse S of force applied to the surface 5 (Fig. 1) being cleaned, to increase the efficiency of converting the energy of the source 3 of pulse current to mechanical energy used for cleaning the surface 5, and thereby attain a higher surface cleaning efficiency.
Industrial Applicability The invention can be used for cleaning the walls of hoppers, dryers, cyclones, pipes and other similar equipment from substances tending to adhere thereto, bridging of loose materials, ice and other contaminants.
00 0 0* *0 *0
Claims (2)
1. An apparatus for cleaning a surface from substances adhered thereto comprising an electromagnet coil, a source of pulse current connected to the electromagnet coil, a paramagnetic plate from a highly electroconductive material arranged between the surface being cleaned and end face of the electromagnet coil, wherein the electromagnet coil is multilayer, the number n of layers ranging from two to five, each layer having the form of a helical current conducting bar of rectangular cross section, the layers of the electromagnet coil resting in parallel planes and connected in an aiding connection, the number W of coil turns in each layer for a two-layer electromagnet coil ranging from 0.4W 1 to 1.1W 1 whereas the height h of the current-conducting bar ranges from A to 1.5 A, for a three-layer electromagnet coil the number W of coils in each layer 20 ranging from 0.35W 1 to 0.9W, whereas the height h of 0 "the current-conducting bar ranges within from 0.8 A to A, for a four-layer electromagnet coil the number W of turns in each layer ranging from 0.32W 1 to 0.75W 1 whereas the height h of the current-conducting bar ranges from 0.75 A to 0.9 A, and for a five-layer electromagnet coil the number W of turns in each layer ranging from 0.3W 1 to 0.65W 1 whereas the height h of the current-conducting bar is within a range from 0.7 A *s 3 to 0.8 A, where W 1 is the optimum number of turns, and A is the equivalent depth of penetration of the magnetic field into the metal of the electromagnet coil. 0
2. An apparatus for cleaning a surface from substances adhered thereto substantially as herein described with reference to the accompanying drawings. DATED this 17th day of April 1991 FILIAL VSESOJUZNOGO ELEKTROTEKNICHESKOGO INSTITUTA IMENA V.I. LENINA By their Patent Attorneys GRIFFITH HACK CO. L i I- II APPARATUS FOR CLEANING SURFACES FROM SUBSTANCES ADHERED THERETO Abstract An apparatus for cleaning surfaces from substances adhered thereto comprises a multilayer electromagnet coil a source of pulse current, a paramagnetic plate disposed between the surface being cleaned and the electromagnet coil The number n of layers (8) in the coil is within two and five, each such layer having the form of a current-conducting helical bar (7) of rectangular cross section. The layers are arranged in parallel planes and are connected in an aiding connec- tion. With respect to two-layer, three-layer, four-layer, and five-layer electromagnetic coils there is a pre- determined dependence of the number W of coil turns (9) in each layer on the optimum number W 1 of turns and the height h of the current-conducting bar on the equivalent depth a of penetration on the magnetic field into the metal of the electromagnet coil
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/SU1988/000096 WO1989010213A1 (en) | 1988-04-22 | 1988-04-22 | Device for cleaning a surface in order to remove sticky substances |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2327188A AU2327188A (en) | 1989-11-24 |
| AU612705B2 true AU612705B2 (en) | 1991-07-18 |
Family
ID=21617244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU23271/88A Ceased AU612705B2 (en) | 1988-04-22 | 1988-04-22 | Device for cleaning a surface in order to remove sticky substances |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4985735A (en) |
| AU (1) | AU612705B2 (en) |
| DE (1) | DE3891312T1 (en) |
| DK (1) | DK652289A (en) |
| FI (1) | FI896121A0 (en) |
| GB (1) | GB2228547A (en) |
| WO (1) | WO1989010213A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9415636U1 (en) * | 1994-09-27 | 1995-02-16 | Siemens AG, 80333 München | Bobbin |
| GB2300033B (en) * | 1995-04-21 | 1999-02-24 | Magnaflex Corp Limited | Agitation and prevention of residue build-up of substances in containers, pipes and on surfaces |
| US7608308B2 (en) * | 2006-04-17 | 2009-10-27 | Imra America, Inc. | P-type semiconductor zinc oxide films process for preparation thereof, and pulsed laser deposition method using transparent substrates |
| CN102710089B (en) * | 2012-04-19 | 2014-06-18 | 谢继东 | Electromagnetic transducer for dedusting and unblocking |
| RU2694343C1 (en) * | 2017-03-06 | 2019-07-11 | Общество с ограниченной ответственностью Научно-производственное предприятие "МИТЭК" | Device for cleaning surfaces from adhered and frozen granular materials |
| CN110961409B (en) * | 2019-12-02 | 2021-07-20 | 杜商精机（嘉兴）有限公司 | Cleaning device and method of valve body cleaning machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1407859A (en) * | 1972-04-10 | 1975-09-24 | I A Levin | Method for separating deposits formed on the surface of structures during production process or in the course of operation of apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU528962A1 (en) * | 1974-06-17 | 1976-09-25 | Всесоюзный Дважды Ордена Трудового Красного Знамени Теплотехнический Научно-Исследовательский Институт Им. Ф.Э.Дзержинского | Device for cleaning the surface from contamination |
| SU918220A1 (en) * | 1978-08-17 | 1982-04-07 | Всесоюзный Институт По Проектированию Организации Энергетического Строительства "Оргэнергострой" | Device for shaking-off material sticking to hopper wall |
| SU875198A1 (en) * | 1980-01-17 | 1981-10-23 | Всесоюзный Институт По Проектированию Организации Энергетического Строительства "Оргэнергострой" | Apparatus for removing contaminations out of surfaces |
| SU1126339A1 (en) * | 1983-06-27 | 1984-11-30 | Предприятие П/Я В-2156 | Article cleaning device (modifications) |
| US4838287A (en) * | 1987-08-11 | 1989-06-13 | Toyota Jidosha Kabushiki Kaisha | Method and device for electromagnetic removal of spatter on nozzle of arc welding torch |
-
1988
- 1988-04-22 DE DE883891312T patent/DE3891312T1/en not_active Withdrawn
- 1988-04-22 WO PCT/SU1988/000096 patent/WO1989010213A1/en active Application Filing
- 1988-04-22 AU AU23271/88A patent/AU612705B2/en not_active Ceased
- 1988-04-22 US US07/449,879 patent/US4985735A/en not_active Expired - Fee Related
-
1989
- 1989-12-20 FI FI896121A patent/FI896121A0/en not_active Application Discontinuation
- 1989-12-21 DK DK652289A patent/DK652289A/en not_active Application Discontinuation
- 1989-12-22 GB GB8928983A patent/GB2228547A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1407859A (en) * | 1972-04-10 | 1975-09-24 | I A Levin | Method for separating deposits formed on the surface of structures during production process or in the course of operation of apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2327188A (en) | 1989-11-24 |
| DK652289A (en) | 1990-02-20 |
| GB2228547A (en) | 1990-08-29 |
| DK652289D0 (en) | 1989-12-21 |
| WO1989010213A1 (en) | 1989-11-02 |
| US4985735A (en) | 1991-01-15 |
| GB8928983D0 (en) | 1990-06-13 |
| FI896121A0 (en) | 1989-12-20 |
| DE3891312T1 (en) | 1990-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU612705B2 (en) | Device for cleaning a surface in order to remove sticky substances | |
| CN101934280B (en) | Efficient ultrasonic scale-preventing/removing device for long-pipeline | |
| US6227853B1 (en) | Magnetic coupling system and method | |
| EP0357453B1 (en) | A discharge tube arrangement | |
| US6866306B2 (en) | Low-loss inductive couplers for use in wired pipe strings | |
| EP0455837B1 (en) | Ultrasonic resonator | |
| EP0781994A2 (en) | Electromagnetic acoustic transducer and emar system | |
| AU689279B2 (en) | Electromagnetic acoustic transducer | |
| US7362235B1 (en) | Impedance-matched drilling telemetry system | |
| CN105014224B (en) | High-speed deformation connecting method and device for dissimilar metal sheets | |
| EP2064155B1 (en) | Fluid conveying conduit and method for preventing fluid contamination | |
| CN204480870U (en) | A kind of transmitting coil structure of high quality factor | |
| CN201841139U (en) | High-efficient ultrasonic anti-scaling/de-scaling device for long pipeline | |
| JPH02502705A (en) | Device for separating ferromagnetic materials from a flowing medium | |
| JP3956528B2 (en) | Separation-type transformer power transmission method and apparatus | |
| EP0357452B1 (en) | A discharge tube arrangement | |
| WO1997026090A1 (en) | Magnetostrictive actuator | |
| JPS6276509A (en) | Thin type transformer | |
| US3244253A (en) | Acoustic logging systems | |
| WO2013093183A1 (en) | Ultrasonic cleaner for a heat exchanger | |
| EP0340624B1 (en) | Electroacoustic transducer | |
| JPS63100991A (en) | Hammering device | |
| CN102568747B (en) | Donwhole ultrasonic matching inductor and operation and construction system thereof | |
| CN206838454U (en) | Magnetostrictive transducer and the high-power ultralow frequency sound source for underwater emission | |
| EP3792449A1 (en) | Acoustic emitter for the treatment of oil and gas wells |